This paper sets out to peruse the role of various theories or more precisely, hypotheses invoked in second language acquisition (SLA) research by surveying three empirical studies pertaining to the critical period hypothesis in the SLA of phonetics and phonology. In particular, the three studies reviewed are titled in chronological order as (1)…

This paper explored the adult student opinions on four types of English classroom activities (language learning; language acquisition; information convey; role play) and the relationship between the fondness degrees and their personality, test performance and motivation. It turned out that the majority of students ranked all classroom activities a…